Android Properties 使用实例

喜欢ヅ旅行 2022-08-21 04:23 179阅读 0赞

Android应用开发的过程中有的时候我们可能会用到.properties文件来写一些配置信息(例如服务器的IP，端口号，APP应用更新的URL等等)。下面就对Android 应用中操作Properties文件做一个简单的封装(没什么技术含量) .properties文件放置在assetes文件夹下面。

简单的类图如下

![这里写图片描述][20160315114807712]

主要的操作都在BasePropertiesConfig文件中完成，代码如下

public abstract class BasePropertiesConfig implements BasePropertiesControl { 
    
        private final Properties mProps = new Properties();
    
        protected abstract Context getContext();
    
        protected abstract String getPropertyFileName();
    
        protected BasePropertiesConfig() {
            initialize();
        }
    
        private void initialize() {
            Context context = getContext();
            InputStream in = null;
            try {
                AssetManager assetManager = context.getAssets();
                in = assetManager.open(getPropertyFileName());
                mProps.load(in);
            } catch (IOException e) {
                Log.e("BasePropertiesConfig", "Cannot open: " + getPropertyFileName());
            } finally {
                if (in != null) {
                    try {
                        in.close();
                    } catch (IOException ignored) {
                    }
                }
            }
        }
    
        @Override
        public boolean getBoolean(String key) {
            return getBoolean(key, false);
        }
    
        @Override
        public boolean getBoolean(String key, boolean defVal) {
            return Boolean.parseBoolean(mProps.getProperty(key, Boolean.toString(defVal)));
        }
    
        @Override
        public int getInteger(String key) {
            return getInteger(key, 0);
        }
    
        @Override
        public int getInteger(String key, int defVal) {
            return Integer.parseInt(mProps.getProperty(key, Integer.toString(defVal)));
        }
    
        @Override
        public short getShort(String key) {
            return getShort(key, 0);
        }
    
        @Override
        public short getShort(String key, int defVal) {
            return Short.parseShort(mProps.getProperty(key, Integer.toString(defVal)));
        }
    
        @Override
        public long getLong(String key) {
            return getLong(key, 0);
        }
    
        @Override
        public long getLong(String key, int defVal) {
            return Long.parseLong(mProps.getProperty(key, Integer.toString(defVal)));
        }
    
        @Override
        public String getString(String key) {
            return mProps.getProperty(key);
        }
    
        @Override
        public String getString(String key, String defVal) {
            return mProps.getProperty(key, defVal);
        }
    }

**[顺带附上一个实例(很简单的很简单的][Link 1])**

[20160315114807712]: /images/20220731/3eec256843b74c499c81d92a3d96c371.png
[Link 1]: http://download.csdn.net/detail/wuyuxing24/9461867